Wells – Processes – Cleaning or unloading well
Patent
1997-07-03
1998-11-17
Schoeppel, Roger J.
Wells
Processes
Cleaning or unloading well
1663342, 1663344, 166223, 1661172, E21B 3708
Patent
active
058363947
ABSTRACT:
A well regeneration apparatus and method of accomplishing same are provided. A scrubber pump is associated with a device for mechanically cleaning a well casing for washing and scrubbing a filter pipe portion of the well casing, and a gravel bed that surrounds the well casing, by means of a fluid. A feed pump is disposed above the scrubber pump, and the pressure side of the feed pump is connected to a riser that leads out of the well. A pump chamber of the scrubber pump communicates with the suction side of the feed pump. A further chamber is disposed in the vicinity of the scrubber pump and serves to accommodate the mechanically cleaning device. The pump chamber of the scrubber pump is disposed above the further chamber and serves to accommodate components of the scrubber pump that convey fluid outwardly into the gravel bed, in particular such that fluid passes out of the gravel bed, via the lower further chamber into the upper chamber of the scrubber pump, and from the upper chamber into the gravel bed.
REFERENCES:
patent: 4037661 (1977-07-01), Ford
patent: 4372384 (1983-02-01), Kinney
patent: 4892145 (1990-01-01), Stafford
patent: 5318128 (1994-06-01), Johnson et al.
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